Roller skate



l Peb. s, 1949.

G. A. REICH ROLLER SKATE Filed Jan. l2, 1948 1N V EN TOR.

Patented Feb. 8, 1949 encinas. e

'ROLLER Geprge'A. Reich, Cleveland. Qhio Applicationanuary 12, 1943,1'Serial INo. 1;69-1.

theeame time the seat is not rendered unduly l brittle- .Y ,-.Anotherimportantobject of the invention is to provide 'meansy `to positionand maintain the inclinationef the hanger or truck longitudinallyon ne bathed.

` I gattainjthese objects by the `mechanism illustratedin the accompanying drawing in which:

-.ligune l Ais a View in side relevation partly in section oi `a lroller skate lshowingLmy improvement incorporated therein,

Figure V2 1is4 a plan View thereof. Y

, `Jiiguiee. is afragmentary view in end elevation,

asimilar numerals refer to throughout the lseveral views. i v

Referringto the drawing, the shoe supporting plated j.comprises a bodyconvsisting ci a 'metallic plate/*having integrallyy formedtherewith and .on the underside.. thereof, at or adjacent its ends, longitudinally extending medially situated bosses f2;YYc'onnectedl at their inner extremities rby means A.ofspacedribs .or stiieners 3,3..

'^As the mechanism at the respective-ends, differ in no essentialpoint, a description of one it is thought vvillsuiilce for both.

In each boss there is provided a longitudinally extending smooth cylindrical bore 4, centrally .located in the longitudinal axis of the shoe `plate. The bore extends inwardly to provide an exceptionally long, bearing for the cylindrical plug 5 that is held against turning movement within the saidjborevby means of the reduced end Lportion ofthe'plugthat engages inthe slot'l that'rextends downwardly from the top surface of the shoe plate perpendicular to the longitudinal axis thereof. This slot stops short of penetrating the thickness of the boss. The slot interrupts the continuity of the thread where it enters the vertical threaded bore 8 in the boss, adapted to receive the threaded portion of the bolt 9. The reduced end portion of the cylindrical plug is provided with an inclined plane i0 adapted to engage and cooperate with the truncated conical end portion I l of the threaded bolt.

In the cylindrical plug, in the end remote from its reduced end portion there is provided a socket I2 for engaging the ball-shaped head I3 of similar parts 2 claims. (ci. 28o-Liles) the. member lll; .extending 'from lleifrliQKLplatformait. The balieshaped heady isy vheld inthe socket by means of, the integrally formedrlproe letting pertionsl-B and il diametrcallv opposite and hostonedeperpendicular to the y,1ongitudinal wie OfftheCylindricaiplua The vprojecting por.- tions are bent toconform tothe surface'oithe ball-shaped :head 'and arezadapted -toholdxthc balleshaped .head captiye in the vsocket while at the ysaine time allowinggthe `loalleshaped head/t0 pivotin the-Socket. f

-In the platforln15; there is provided a Vref moi/ably mounted'seat .or :bearing :I -machined tobe .pressed :into the ,bore .-l 9 adaptedfto receive it. The seat is `provided with an annular shoulder 2i) to prevent thesseatbeing'pressed beyond. Aits predetermined location inthe lplatformx'lhe 'seat maybe made of special highigradealloy,steelaand this :unique improvement enables'theseat to .retain ts accuracy of shape I.overafleng period-and reduces wearo-the.seatztoaminimum.

.'lhepbolt 9 is scientically hardened. through ouh-the headportion 2I thereof constitutesa portion: .of a` sphere; the .center of whchis identi cal Witlitthat,oigtherseat. This obyiates the ,risk'of incorrect :positioning of. the truck :when itis tilted on the ball-slmpcdheadin ymaking adjustments of the truck relative thereto.

'The truck is vprovided .with an upstanding flange 2.2 .adapted'to prevent spreading of ,the lower portion Tof lthe resilient truncated conical cushioning `member .23 inxrnaking and retaining adjustments.

`O'n :the utop surface of the cushioning 'member there is provided V-a vmetallic washer 2l!v on vvwhich the flockV nut T2 5 bears. The 4lock 'nut is `provided "to lock the boitin position after the adjustment has been made. "The headof thebolt is/provided'with a :slot `26-to take/a screw driver or the like in making ltheladjustinent.

The axle 21 is'non-rota'tably mounted in the truck structure, and the rollers 28 arevremovably mounted thereon.

The operation of the device is as follows:

When it is necessary to take up the play of the seat on the bolt head, the boltY is loosened by releasing the lock nut thereon. The bolt is then turned in the proper direction. If clockwise, as Y the bolt is turned up in the threaded bore in the boss, the truncated conical end ofthe bolt, n which is in engagement with the'inclined planev cylindrical plug. The member with the ballshaped head is connected to the platform of the truck. The resilient member mounted on the platform of the truck resists the adjustment and accommodates itself to its adjusted position thereon. The adjustment of the cylindrical plug causes the platform to tilt, and the resilient conical member mounted thereon holds the cylindrical plugin engagement with the conical end of the bolt,- thus maintaining the adjustment. It is obvious that theadjustment may be vice versa.

It will accordingly be seen that I have provided a construction which satises the objects of the invention, and while I have shown the invention in a certain physical embodiment, it is to be understood that modifications of structure may be made by those skilled inthe art without departing from' the invention as claims which follow.

What is claimed is:

1. A roller skate comprising, in combination, a shoe supporting member having formed therein longitudinally extending vertical slots of a predetermined depth, medially positioned longitudinally extending bosses `integrally formed with and on the underside thereof, spaced ribs connecting the inner extremities of the bosses, each of the aforementioned bosses having therein a longitudinally extending smooth bore, the inner end of which leads into the beforementioned slots, the slots leading into threaded vertical bores in the bosses adapted to receive a threaded bolt having a truncated conical end portion, and a head portion with a spherical surface, the head portion being provided with a tool receiving recess therein, a cylindrical plug having a reduced end portion provided with an inclined plane extending into the slot and also into the threaded bore and also having remote from the reduced end portion a socket therein, the plug being non-rotatably but slidably mounted in the smooth bore, vertically positioned projecting members extending from the socket, a truck having an angularly disposed portion extending upward from the truck and having a portion extending therefrom toward the socket in the cylindrical plug and terminating in a ballshaped end adapted to engage in the socket to provide a pivotal connection therewith and held in the socket by bending the projecting members to conform to the surface of the ball-shaped end, a platform having a ball seat therein, the threaded bolt extending upward through the ball seat, the spherical surface of the bolt cooperating with the seat, a resilient cushion of truncated conical configuration mounted on the bolt and on the platform, a washer mounted on the cushion, a lock nut mounted on the bolt between the washer and the boss, thev truncated conical end of the bolt adapted to cooperate with the plane inclined surface on the reduced end porexpressed in the v jwith and on the underside thereof spaced ribs connecting the inner extremities of the bosses, each of the aforementioned bosses having therein a longitudinally extending smooth bore, the inner end of which leads into the beforementioned slots, the slots leading into threaded through vertical bores in the bosses adapted to receive a threaded bolt having a truncated conical end portion, and a head portion with a spherical surface, the head portion being provided with a tool receiving recess therein, a cylindrical plug having a reduced end portion provided with an inclined plane extending into the slot and also into the threaded bore and also having remote from the reduced end portion, a socket therein, the plug being non-rotatably but slidably mounted in the smooth bore, vertically positioned projecting members extending from the socket, a truck having an angularly disposed portion extending upward therefrom and having a portion extending therefrom inwardly toward the socket in the cylindrical plug and terminating in a ball-shaped end adapted to engage in the socket and to provide a pivotal connection therewith, and held in cooperative relation in the socket by bending the projecting members to conform to the surface of the ball-shaped end, a platform, a removably mounted ball seat therein, the threaded bolt extending upward through the hall seat, the spherical surface ofthe bolt cooperating with the ball seat, a flexible compressible cushioning member of truncated conical configuration mounted on the platform and the bolt extending therethrough, a washer mounted on the aforesaid cushioning member, a lock nut on the bolt and positioned between the washer and the boss, the truncated conical end of the bolt adapted t`o cooperate with the inclined plane surface on the reduced end portion of the cylindrical plug. the lock nut adapted to lock the bolt in adjusted position, an axle fast in the truck, and removably mounted rollers on the axle.

GEORGE A. REICH.

REFERENCES CITED Y The following references are of record in the Name Date Reich Nov. l1, 1947 Number 

